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<?php
namespace Dhtmlx\Connector\Output;
use Dhtmlx\Connector\DataStorage\DataConfig;
class TreeRenderStrategy extends RenderStrategy {
protected $id_swap = array();
public function __construct($conn) {
parent::__construct($conn);
$conn->event->attach("afterInsert",array($this,"parent_id_correction_a"));
$conn->event->attach("beforeProcessing",array($this,"parent_id_correction_b"));
}
public function render_set($res, $name, $dload, $sep, $config, $mix){
$output="";
$index=0;
$conn = $this->conn;
$config_copy = new DataConfig($config);
$this->mix($config, $mix);
while ($data=$conn->sql->get_next($res)){
$data = $this->simple_mix($mix, $data);
$data = new $name($data,$config,$index);
$conn->event->trigger("beforeRender",$data);
//there is no info about child elements,
//if we are using dyn. loading - assume that it has,
//in normal mode juse exec sub-render routine
if ($data->has_kids()===-1 && $dload)
$data->set_kids(true);
$output.=$data->to_xml_start();
if ($data->has_kids()===-1 || ( $data->has_kids()==true && !$dload)){
$sub_request = new DataRequestConfig($conn->get_request());
//$sub_request->set_fieldset(implode(",",$config_copy->db_names_list($conn->sql)));
$sub_request->set_relation($data->get_id());
$output.=$this->render_set($conn->sql->select($sub_request), $name, $dload, $sep, $config_copy, $mix);
}
$output.=$data->to_xml_end();
$index++;
}
$this->unmix($config, $mix);
return $output;
}
/*! store info about ID changes during insert operation
@param dataAction
data action object during insert operation
*/
public function parent_id_correction_a($dataAction){
$this->id_swap[$dataAction->get_id()]=$dataAction->get_new_id();
}
/*! update ID if it was affected by previous operation
@param dataAction
data action object, before any processing operation
*/
public function parent_id_correction_b($dataAction){
$relation = $this->conn->get_config()->relation_id["db_name"];
$value = $dataAction->get_value($relation);
if (array_key_exists($value,$this->id_swap))
$dataAction->set_value($relation,$this->id_swap[$value]);
}
}
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